Stove.



S. I. PALMER.

STOVE. APPLIOATION FILED 11:13.13, 1907.

SYLVESTER F. PALMER, OF SPRINGFIELD, MISSOURI.

STOVE.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application led. February 13, 1907. Serial No. 357,196.

To all whom it may concern:

Be it known that I, SYLVESTER F. PAL- MER, citizen of the United States,residing at Springfield, in the county of Greene and State of Missouri,have inventedcertain new and useful Improvements in Stoves, of which thefollowing is a specification.

This invention has for its object an improved construction of stovewhich provides a direct draft froml the combustion chamber to the mainflue leading to the chimney, and in addition to such direct draft, oneor more pipes are located on the outside of the main body of the stoveand adapted, when the direct draft is closed, to produce one or moredown-drafts leading from the upper end of the fire chamber downwardly onthe outside of the stove and thence back into the stove underneath thefire chamber, or through the ash pit and thence finally back into themain up-draft flue, thereby passing the heated products of combustiondownwardly on the outside of the stove and increasing the thermalefficiency of the latter.

With this and other objects in view as will more fully appear as thedescription proceeds, the invention consists in certain constructionsand arrangements of the parts which I shall now first describe andparticularly point out the novel features in the appended claim.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction of the meansfor eecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure l is a vertical sectional view of my improved stove; and, Fig. 2is a horizontal sectional view thereof on the line 22 of Fig. l.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

Referring to the drawing, the numeral 1 designates the body of myimproved stove which is provided with a bottom 2, the bottom flue 3underneath the grate, the back flue 4 leading outwardly and upwardlyfrom the bottom flue 3 and adapted to be secured to the chimney andconnected directly with the upper end of the fire chamber 5 by means ofthe direct draft flue 6 controlled by any desired form of damper 7. Inaddition to these Well known features, my improved stove embodies one ormore down-draft lues which are formed by means of pipes secured to thebody 1 of the stove and located on the outside of the latter. In thepreferred arrangement, I provide two of these iiues, designated 8,located at opposite sides of the front of the stove as clearlyillustrated in the drawing. These flues 8 open out of the iire chamber 5at the outer end of the latter and also communicate at their lower endswith the bottom flue 3 underneath the fire chamber, so as to establishadown-draft from the upper end of the fire chamber and a draft acrossthe bottom flue into the lower end of the back flue 4. The back flue 4may also be provided with a damper 9 where it comnunicates with the rearend of the bottom From the foregoing description in connection with theaccompanying drawing, it will be evident that when the direct draft 6 isopen and the damper 9 closed, the products of combustion from the firechamber 5 will pass directly up through the direct flue 6 and thence tothe chimney. Whenever the damper 7 is closed to shut 0H the direct iiue6, the said products of combustion will pass from the upper end of thefire chamber 5 out into the pipe or flues 8, and thence downwardly onthe outside of the stove body and back'again through the bottom flue soas to finally escape into the lower end of the back flue 4 and thence tothe chimney. By this means the products of combustion are not permittedto escape directly to the back flue 4, but are caused to pass downwardlyand it is manifest that the outside arrangement of the pipes 8 willcause the same to serve as heating drums or radiators so as to increasethe efliciency of the stove.

1() designates a pipe which leads upwardly through the bottom flue 3through the bottom of the stove and extends forwardly from the frontwall of the stove with a returned end which extends between the twopipes 8 and back into the stove body at the bottom of the fire chamber.In that portion of the pipe 10 which is located outside of the stove, isa damper 11 so as to regulate said pipe. By this means, a hot blastdraft may be established whenever desired.

Having thus described the invention, what is claimed as new'is:

The herein described stove, comprising a body provided in its lowerort-ion with a grate forming a combustion c amber and an ash pit, anexit llue having communication I grate and opposite the exit llue, adamper arat its lower end with the ash pit and near its upper end withthe upper portion of the Combustion chamber, a damper controllingcommunieation between the lower end of the exit flue and the ash pit, asecond damper controlling communication between the upper portion of thecombustion chamber and said exit flue, an air pipe located within theash pit adjacent to the grate and having its rear end curved downwardlyand opening through the bottom of the stove near the lower end of theexit llue and having its l'ront end extended through the stove body andreeurved and in communication with the combustion chamber at a pointimmediately above the ranged in the reeurved portion ol said air pipe,and two down-draft l'lues arranged exterior to the stove body oppositethe exit llue and upon opposite sides olt the front portion of theaforesaid air pipe, said dral't llues having` their upper ends incommunication with the upper portion of the combustion chamber and theirlower ends in eonnnunieation with the l'ront portion ol the ash pit.

In testimony whereof I allix my signature in presence ol two witnesses.

SYLVESTER l". PALMER, Witnesses W. A. BANKS, G. E. BiRD.

